package com.gjy.nwpufindseats.util;

import android.content.Context;
import android.util.AttributeSet;
import android.webkit.WebView;
import android.widget.ProgressBar;
/**
 * 自定义WebView带进度条
 * @author rt.zhoujunfang
 *
 */
@SuppressWarnings("deprecation")
public class WebProgressBar extends WebView {
	/** 进度条 */
	private ProgressBar progressbar;

	public WebProgressBar(Context context, AttributeSet attrs) {
		super(context, attrs);
		// 初始化进度条
		progressbar = new ProgressBar(context, null, android.R.attr.progressBarStyleHorizontal);
		// 设置进度条风格
		progressbar.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, 5, 0, 0));		
		addView(progressbar);
		setWebChromeClient(new WebChromeClient());
		
	}
	
	public class WebChromeClient extends android.webkit.WebChromeClient {
        @Override
        public void onProgressChanged(WebView view, int newProgress) {
            if (newProgress == 100) {
            	// 加载完成隐藏进度条
                progressbar.setVisibility(GONE);
            } else {
                if (progressbar.getVisibility() == GONE)
                    progressbar.setVisibility(VISIBLE);
                progressbar.setProgress(newProgress);
            }
            super.onProgressChanged(view, newProgress);
        }

    }
	
	@Override
    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
		LayoutParams lp = (LayoutParams) progressbar.getLayoutParams();
        lp.x = l;
        lp.y = t;
        progressbar.setLayoutParams(lp);
        super.onScrollChanged(l, t, oldl, oldt);
    }
}
